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One of the research projects of Multi-Beam Klystrons (MBKs) is to extend its bandwidth. The bandwidth of the MBKs strongly depends on its peak power and the cathode loading. In some applications, an S-band MBK with peak power of 30∼50kW, bandwidth of 10%, efficiency of more than 25%, and the lifetime of more than 3000 hours is needed. In order to realize wide bandwidth at low peak power, the S band...
An S-band high average power broadband MBK with peak power of 500kW, average power of 30kW and relative bandwidth of 10% is being developed in the Institute of Electronics, Chinese Academy of Sciences (IECAS). Two types of RF interaction system, cylindrical cavity and coaxial cavity are going to be used for getting required performance. The calculation results and relative technical problems for developing...
From 1960s the Institute of Electronics, Chinese Academy of Sciences (IECAS) began to study the broadband klystron. Many methods to extend bandwidth of klystron have been adopted and more than ten types of broadband klystron have been developed. Recently we have successfully broken through the bandwidth of 12% in S-band on the peak power level of 800 kW. This paper introduces the state-of-art of our...
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